Question

please give me the answer​

Answer 1

Answer:

Explanation:

gehjurnvu845t895nuuyr9j9rg0rti0ur9uyjejhg f fb bh7rg7gur9g8

Answer 2

Answer:

The most common method to get an idea about the pH of solution is to use an acid base indicator. An indicator is a large organic molecule that works somewhat like a " color dye". Whereas most dyes do not change color with the amount of acid or base present, there are many molecules, known as acid - base indicators , which do respond to a change in the hydrogen ion concentration. Most of the indicators are themselves weak acids.